Data quality  

On-grid electricity

Zanzibar currently imports all of its grid electricity through cables from the mainland, but has plans for production of renewable energy based on indigenous solar and wind resources. There are currently no mini-grids on the islands, but a number of households and businesses produce their own electricity using privately owned generators (which is captured in the database through the import of fossil fuels).


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Electricity

Electricity import

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Most of the electricity consumed on Zanzibar is imported from the mainland trough cables to Unguja and Pemba. The Zanzibar Energy Utility, ZECO, report electricity consumption on a monthly basis.

On-grid electricity

Electricity export

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Zanzibar has to date no exported electricity. This may change in the future, as indigenous renewable energy resources are exploited.

On-grid electricity

Grid connected electricity production

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Unguja   Pemba   Both  
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Until Pemba was connected to the mainland through a sub-marine cable in 2011, the island was supplied by diesel generators operated by ZECO. Since, no grid connected power production has taken place on Zanzibar.

Mini-grid electricity

Mini-grid production

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Unguja   Pemba   Both  
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This is an example of the explanatory text that accompagnies each graph. It can be edited in the Backoffice. To view specific parameters, lick a legend to switch it on/off.

On-grid electricity

Consumption by tariff category

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Unguja   Pemba   Both  
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ZECO reports electricity consumption on a monthly basis for the four tariff categories plus pre-pay. To improve the financial situation of ZECO, it is a policy objective to move regular and commercial consumers on to Tukuza (pre-pay). Note that the tariff structure changed primo 2013.

On-grid electricity

Number of connections (Total)

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Unguja   Pemba   Both  
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ZECO reports electricity consumption on a monthly basis for the four tariff categories plus pre-pay. To improve the financial situation of ZECO, and reduce losses, it is a policy objective to move regular and commercial consumers on to pre-pay. Due to incomplete records, data for some monts are missing.

On-grid electricity

Number of connections (Unguja)

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Unguja   Pemba   Both  
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ZECO reports electricity consumption on a monthly basis for the four tariff categories plus pre-pay. To improve the financial situation of ZECO, and reduce losses, it is a policy objective to move regular and commercial consumers on to pre-pay. Due to incomplete records, data for some monts are missing.

On-grid electricity

Number of connections (Pemba)

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Unguja   Pemba   Both  
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ZECO reports electricity consumption on a monthly basis for the four tariff categories plus pre-pay. To improve the financial situation of ZECO, and reduce losses, it is a policy objective to move regular and commercial consumers on to pre-pay. Due to incomplete records, data for some monts are missing.

On-grid electricity

Peak demand

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Peak demand (MW) are reported monthly by ZECO for Unguja and Pemba respectively. The numbers include technical losses. Due to incomplete records, some data points are missing.

Technical state of the power grid

Technical losses

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Techincal losses for Unguja and Pemba respectively are reported montly by ZECO. Losses are a function of the techincal state of the grid, and demand. Substantial investments are underway to imporve the quality of supply. Due to incomplete records, some data points are missing.
Data quality: